Injection mold

Abstract

The disclosure provides an injection mold, comprising a fixed seat (10), a fixed mold plate (20), a first core mold (30), a second core mold (40) and a movable mold (50). The fixed mold plate is movably connected to the fixed seat, and the fixed mold plate has a first fixed mold part (21) and a second fixed mold part (22). The first core mold and the second core mold are movably connected to the fixed mold plate to close and open with the first fixed mold part and the second fixed mold part. The movable mold can move relative to the fixed seat, and can also move relative to the fixed seat to a first forming position and a second forming position. The movable mold in the first forming position can close with the first fixed mold part and the first core mold to form a first forming cavity (101), and the movable mold in the second forming position can close with the second fixed mold part and the second core mold in the longitudinal closing direction to form a second forming cavity (102). The injection mold can prevent the light barrier from sliding off between the light guide columns.

Description

Technical Field

[0001] This invention relates to the field of injection molding, and more particularly to an injection mold. Background Technology

[0002] Circuit breakers typically have indicator lights to indicate their status. Circuit breakers achieve this function using LED lights and light guides. The LED lights that generate light are located on the main board of the circuit breaker, and the light generated by the LED lights is directed to the outside of the housing by a dual-color light guide assembly located on the housing.

[0003] The dual-color light guide assembly includes a first injection molded body and a second injection molded body. The first injection molded body includes several light guide pillars, and the second injection molded body is a light-blocking component. It is formed by secondary injection molding of different materials between two adjacent light guide pillars to prevent mutual interference between the light guide pillars.

[0004] In current dual-color light guide components, the size of the light-blocking component shrinks after secondary injection molding, making it unable to completely fit the light guide column and prone to slipping off between the light guide columns. Summary of the Invention

[0005] The purpose of this invention is to provide an injection mold for manufacturing a dual-color light guide assembly through secondary injection molding, and to prevent the light-blocking component from slipping between the light guide pillars.

[0006] This invention provides an injection mold for injection molding parts comprising a first injection body and a second injection body. The injection mold includes a fixed base, a fixed template, a first core mold, a second core mold, and a movable mold. The fixed template is movably connected to the fixed base along the longitudinal mold-closing direction and the opposite direction thereto, and the fixed template has a first fixed mold portion and a second fixed mold portion. The first core mold is movably connected to the fixed template for mold closing and mold opening with the first fixed mold portion. The second core mold is movably connected to the fixed template for mold closing and mold opening with the second fixed mold portion. The moving mold can move relative to the fixed base along the longitudinal mold-closing direction and the opposite direction of the longitudinal mold-closing direction. The moving mold can also move relative to the fixed base along a trajectory perpendicular to the longitudinal mold-closing direction to a first molding position and a second molding position. The moving mold in the first molding position can close with the first fixed mold part and the first core mold along the longitudinal mold-closing direction to form a first molding cavity. The first molding cavity corresponds to the shape of the first injection molded body. The moving mold in the second molding position can close with the second fixed mold part and the second core mold along the longitudinal mold-closing direction to form a second molding cavity. The second molding cavity corresponds to the shape of the first injection molded body and the second injection molded body after combination.

[0007] The injection mold disclosed herein includes a first core mold and a second core mold. The first core mold can close with the first fixed mold portion and protrude into the molding cavity, forming an inwardly protruding undercut structure on the first injection body. After the second core mold closes with the first fixed mold portion, a snap-fit ​​structure corresponding to the undercut structure is formed on the second injection body, preventing slippage from the first injection body even if the size of the second injection body is reduced.

[0008] In another illustrative embodiment of the injection mold, the moving mold is rotatable relative to the fixed base about a first axis parallel to the longitudinal mold direction, and the angle between the first molding position and the second molding position is 180 degrees.

[0009] In another illustrative embodiment of the injection mold, the injection mold is provided with two moving molds. The injection mold also includes a movable seat, on which two moving molds are fixed. The movable seat is capable of moving relative to the fixed seat in the direction of mold closing and in the opposite direction of mold closing, and is capable of rotating relative to the fixed seat about a first axis. The two moving molds are centrally symmetrically distributed about the first axis.

[0010] In another illustrative embodiment of the injection mold, a first core mold is movably connected to a fixed mold plate along a first transverse mold-closing direction perpendicular to the longitudinal mold-closing direction and in the opposite direction. The first core mold has a first driving hole, the orientation of which is inclined from the longitudinal mold-closing direction towards the first transverse mold-closing direction. The injection mold also includes a first lever, which is fixedly connected to a fixed base and has a first driving part inserted into the first driving hole. The extension direction of the first driving part is the same as the orientation of the first driving hole. And / or a second core mold is movably connected to a fixed mold plate along a second transverse mold-closing direction perpendicular to the longitudinal mold-closing direction and in the opposite direction. The second core mold has a second driving hole, the orientation of which is inclined from the longitudinal mold-closing direction towards the second transverse mold-closing direction. The injection mold also includes a second lever, which is fixedly connected to a fixed base and has a second driving part inserted into a second driving hole. The extension direction of the second driving part is the same as the orientation of the second driving hole.

[0011] In another illustrative embodiment of the injection mold, the front end of the first core mold along the first transverse mold-closing direction has a core insert portion that protrudes along the first transverse mold-closing direction. The core insert portion is used to define the shape of the first molding cavity and corresponds to at least a portion of the second injection molded body. A portion of the space of the first molding cavity is located on the front side of the core insert portion along the longitudinal mold-closing direction.

[0012] In another illustrative embodiment of the injection mold, the injection mold further includes a locking member, a first locking pin, and a second locking pin. The locking member is fixedly disposed relative to the moving mold. When the moving mold is in either a first molding position or a second molding position, the locking member can move with the moving mold along the longitudinal mold-closing direction to insert into a fixed mold plate. The portion of the locking member for inserting into the fixed mold plate is recessed in a locking groove in a direction perpendicular to the longitudinal mold-closing direction. The first locking pin is movably disposed on the fixed mold plate along a first insertion direction and the opposite direction of the first insertion direction. When the moving mold is in the first molding position and the first fixed mold portion is closed, it can be inserted into the locking groove along the first insertion direction to prevent the locking member from moving relative to the fixed mold plate. The first insertion direction is perpendicular to the longitudinal mold-closing direction. The second locking pin is movably disposed on the fixed mold plate along a second insertion direction and the opposite direction of the second insertion direction. When the moving mold is in the second molding position and the second fixed mold portion is closed, it can be inserted into the locking groove along the second insertion direction to prevent the locking member from moving relative to the fixed mold plate. The second insertion direction is perpendicular to the longitudinal mold-closing direction.

[0013] In another illustrative embodiment of the injection mold, the injection mold further includes a first limiting member and / or a second limiting member. The first limiting member is fixedly connected to the fixing seat, and the first limiting member is movably inserted into the fixed mold plate along the longitudinal mold closing direction and the opposite direction of the longitudinal mold closing direction. When the moving mold is in the first molding position and is closed with the first fixed mold part and the first core mold, the first limiting member can abut against the first locking pin inserted into the locking groove along the first insertion direction. The first limiting member is configured to allow the first locking pin to move out of the locking groove along the opposite direction of the first insertion direction when the moving mold is in the first molding position and is closed with the first fixed mold part and separated from the first core mold. The second limiting member is fixedly connected to the fixing base. The second limiting member is movably inserted into the fixed template in the longitudinal mold closing direction and the opposite direction of the longitudinal mold closing direction. When the moving mold, the second fixed mold part, and the second core mold are closed in the second molding position, the second limiting member abuts against the second locking pin inserted into the locking groove in the second insertion direction. The second limiting member is configured to allow the second locking pin to move out of the locking groove in the opposite direction of the second insertion direction when the moving mold, the second fixed mold part, and the second core mold are closed in the second molding position and separated from the second core mold.

[0014] In another illustrative embodiment of the injection mold, the first locking pin is cylindrical with its axis perpendicular to both the longitudinal mold closing direction and the first insertion direction. The locking groove is a corresponding semi-cylindrical shape. The groove wall of the locking groove can push against the first locking pin during the process of the moving mold and the first fixed mold portion being molded in the first molding position, causing the first locking pin to move out of the locking groove. And / or the second locking pin is cylindrical with its axis perpendicular to both the longitudinal mold closing direction and the second insertion direction. The locking groove is a corresponding semi-cylindrical shape. The groove wall of the locking groove can push against the second locking pin during the process of the moving mold and the second fixed mold portion being molded in the second molding position, causing the second locking pin to move out of the locking groove.

[0015] In another illustrative embodiment of the injection mold, the first limiting member has a first abutting surface parallel to the axial direction of the first locking pin and gradually extending towards the first insertion direction along the longitudinal mold-closing direction. During the process of the fixed mold plate moving relative to the fixed seat along the longitudinal mold-closing direction to drive the first core mold and the first fixed mold part to close by means of a first lever, the first limiting member can push the first locking pin through the first abutting surface to insert the first locking pin into the locking groove. And / or the second limiting member has a second abutting surface parallel to the axial direction of the second locking pin and gradually extending towards the second insertion direction along the longitudinal mold-closing direction. During the process of the fixed mold plate moving relative to the fixed seat along the longitudinal mold-closing direction to drive the second core mold and the second fixed mold part to close by means of a second lever, the second limiting member can push the second locking pin through the second abutting surface to insert the second locking pin into the locking groove.

[0016] In another illustrative embodiment of the injection mold, the mold further includes a drive unit and an elastic element. The drive unit is capable of driving the moving mold relative to the fixed base. The elastic element is capable of driving the fixed mold plate to move relative to the fixed base in the opposite direction of the mold closing direction via an elastic restoring force.

[0017] In another illustrative embodiment of the injection mold, the injection mold further includes a guide rod, which is fixedly connected to a fixed seat and is movably inserted into a fixed template in the longitudinal mold closing direction and the opposite direction of the longitudinal mold closing direction. The elastic element is a compression spring and is sleeved on the guide rod. Attached Figure Description

[0018] The following figures are for illustrative purposes only and do not limit the scope of the invention.

[0019] Figure 1 This is a partial cross-sectional view used to illustrate the circuit breaker.

[0020] Figure 2 This is a cross-sectional structural schematic diagram illustrating one embodiment of a two-color injection mold.

[0021] Figure 3 This is a cross-sectional schematic diagram illustrating a working state of a two-color injection mold.

[0022] Figure 4 This is a cross-sectional view illustrating another working state of a two-color injection mold.

[0023] Figure 5 This is a partial cross-sectional view illustrating one of the operating states of the locking component.

[0024] Figure 6 This is a partial cross-sectional view illustrating another operating state of the locking component.

[0025] Figure 7 This is a partial cross-sectional view illustrating another operating state of the locking component.

[0026] Label Explanation

[0027] 10 Fixtures

[0028] 20. Template

[0029] 21 First mold section

[0030] 22 Second mold section

[0031] 30 First Core Mold

[0032] 31 First driving hole

[0033] 32. Insert part

[0034] 40 Second core mold

[0035] 41 Second driving hole

[0036] 50 moving models

[0037] 60 movable seats

[0038] 70 First lever

[0039] 71 First Drive Unit

[0040] 80 Second lever

[0041] 81 Second Drive Unit

[0042] 91 Locking component

[0043] 911 Locking Slot

[0044] 93 First Locking Pin

[0045] 94 Second Locking Pin

[0046] 95 First Limited Edition

[0047] 951 First thrust surface

[0048] 96 Second Limited Part

[0049] 961 Second thrust surface

[0050] 97 drive units

[0051] 98 Elastic components

[0052] 99 guide rods

[0053] 101 First molding cavity

[0054] 102 Second molding cavity

[0055] 210 Housing

[0056] 220 circuit board

[0057] 230 LED lights

[0058] 240 First Injection Molded Body

[0059] 250 Second Injection Molded Body

[0060] L1 First Axis

[0061] D. Longitudinal mold direction

[0062] T1 First transverse mold closing direction

[0063] T2 Second horizontal mold closing direction

[0064] P1 First insertion direction

[0065] P2 Second insertion direction Detailed Implementation

[0066] To provide a clearer understanding of the technical features, objectives, and effects of the invention, specific embodiments of the invention are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.

[0067] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0068] In this document, terms such as "first" and "second" do not indicate their importance or order, but are only used to distinguish them to facilitate the description of the document.

[0069] To keep the drawings simple, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product.

[0070] Figure 1 This is a partial sectional view used to illustrate the circuit breaker. (Refer to...) Figure 1The circuit breaker utilizes LED lights 230 and a light guide assembly to function as an indicator light. The LED lights 230, which generate light, are mounted on the circuit breaker's circuit board 220, and the light is guided to the outside of the housing 210 by a dual-color light guide assembly located on the housing 210. The dual-color light guide assembly includes a first injection-molded body 240 and a second injection-molded body 250. The first injection-molded body 240 includes several light guide pillars, and the second injection-molded body 250 is a light-shielding component. It is formed by secondary injection molding of different materials between two adjacent light guide pillars to prevent interference between them. In current dual-color light guide assemblies, the size of the light-shielding component shrinks after secondary injection molding, making it unable to completely fit the light guide pillars and prone to slipping off between them.

[0071] To address the aforementioned issues, this disclosure provides an injection mold, wherein the injection molded part made using the mold includes a first injection body 240 and a second injection body 250. Figures 2 to 4 This is a schematic cross-sectional view illustrating one embodiment of a two-color injection mold. (Refer to...) Figures 2 to 4 The injection mold includes a fixed base 10, a fixed template 20, a first core mold 30, a second core mold 40, two moving molds 50, a movable base 60, and a drive unit 97.

[0072] The mounting bracket 10 is fixed to the frame of the injection molding unit. (Refer to...) Figure 2 and Figure 3 The fixed template 20 is movably connected to the fixed base 10 along the longitudinal mold closing direction D and the opposite direction of the longitudinal mold closing direction D. The fixed template 20 has a first fixed mold part 21 and a second fixed mold part 22.

[0073] Reference Figure 2 and Figure 3 The first core mold 30 is movably connected to the fixed template 20 to close and separate from the first fixed mold part 21. The second core mold 40 is movably connected to the fixed template 20 to close and separate from the second fixed mold part 22.

[0074] The drive unit 97 is a cylinder or hydraulic telescopic rod, which is fixed to the frame of the injection molding device. The drive unit 97 is also connected to the movable seat 60. Two moving molds 50 are fixed on the movable seat 60. The movable seat 60 can move relative to the fixed seat 10 in the longitudinal mold closing direction D and the opposite direction of the longitudinal mold closing direction D under the drive of the drive unit 97, and can rotate relative to the fixed seat 10 around the first axis L1.

[0075] Two moving molds 50 can move relative to the fixed base 10 along the longitudinal mold-closing direction D and the opposite direction of the longitudinal mold-closing direction D under the drive of the movable base 60. The two moving molds 50 are centrally symmetrically distributed about the first axis L1. The moving molds 50 can move around the first axis L1 between a first molding position and a second molding position, and the rotation angle between the first molding position and the second molding position is 180 degrees. The moving mold 50 located in the first molding position can close with the first fixed mold part 21 and the first core mold 30 along the longitudinal mold-closing direction D to form a first molding cavity 101. The first molding cavity 101 corresponds to the shape of the first injection molded body 240. The moving mold 50 located in the second molding position can close with the second fixed mold part 22 and the second core mold 40 along the longitudinal mold-closing direction D to form a second molding cavity 102. The second molding cavity 102 corresponds to the shape of the first injection molded body 240 and the second injection molded body 250 after combination.

[0076] The moving mold 50 closes with the first fixed mold part 21 and the first core mold 30 at the first molding position. After the first injection molded body 240 is injection molded, the first injection molded body 240 moves with the moving mold 50 to the second molding position. After the moving mold 50 closes with the second fixed mold part 22 and the second core mold 40, the second injection molded body 250 is injection molded for the second time and the dual-color light guide component is separated from the moving mold 50. The moving mold 50 then moves back to the first molding position to close with the first fixed mold part 21 and the first core mold 30. The two moving molds 50 can move synchronously and realize one injection and two injection respectively, thereby realizing the cyclic processing of the dual-color light guide component.

[0077] The injection mold provided in this disclosure adds a first core mold 30 and a second core mold 40. The first core mold 30 can close with the first fixed mold portion 21 and protrude into the molding cavity, so that an inwardly protruding undercut structure is formed on the first injection body 240. After the second core mold 40 closes with the first fixed mold portion 21, a snap-fit ​​structure corresponding to the undercut structure is formed on the second injection body 250, so that even if the size of the second injection body 250 is reduced, it can be prevented from slipping off the first injection body 240. Although this illustrative embodiment uses a dual-color light guide component as an example, it is not limited to this. The injection mold provided in this disclosure can also be used for molding and manufacturing other components with similar structures.

[0078] In the illustrative embodiment, the first core mold 30 is movably connected to the fixed mold plate 20 along a first transverse mold-closing direction T1 perpendicular to the longitudinal mold-closing direction D and in the opposite direction to the first transverse mold-closing direction T1. The first core mold 30 has a first driving hole 31, the orientation of which is inclined from the longitudinal mold-closing direction D towards the first transverse mold-closing direction T1. The injection mold also includes a first lever 70, which is fixedly connected to the fixed base 10 and has a first driving part 71 inserted into the first driving hole 31. The extension direction of the first driving part 71 is the same as the orientation of the first driving hole 31. This simple structure enables the first core mold 30 to be movably connected to the fixed mold plate 20.

[0079] In the illustrative embodiment, the second core mold 40 is movably connected to the fixed mold plate 20 along a second transverse mold-closing direction T2 perpendicular to the longitudinal mold-closing direction D and in the opposite direction to the second transverse mold-closing direction T2. ​​The second core mold 40 has a second driving hole 41, which is inclined towards the second transverse mold-closing direction T2 from the longitudinal mold-closing direction D. The injection mold also includes a second lever 80, which is fixedly connected to the fixed base 10 and has a second driving part 81 inserted into the second driving hole 41. The extension direction of the second driving part 81 is the same as the orientation of the second driving hole 41. This simple structure enables the second core mold 40 to be movably connected to the fixed mold plate 20.

[0080] In the illustrative embodiment, refer to Figure 2 The first core mold 30 has a core insert 32 protruding along the first transverse mold closing direction T1 at its front end. The core insert 32 is used to define the shape of the first molding cavity 101 and corresponds to the undercut structure of the second injection body 250. A portion of the space of the first molding cavity 101 is located on the front side of the core insert 32 along the longitudinal mold closing direction D.

[0081] In the illustrative embodiment, the injection mold further includes a guide rod 99 and an elastic element 98. The guide rod 99 is fixedly connected to the fixed base 10 and is movably inserted into the fixed platen 20 along the longitudinal mold closing direction D and the opposite direction of the longitudinal mold closing direction D. The elastic element 98 is a compression spring and is sleeved on the guide rod 99. The elastic element 98 can drive the fixed platen 20 to move relative to the fixed base 10 in the opposite direction of the longitudinal mold closing direction D through elastic restoring force.

[0082] Figures 5 to 7 This is a partial cross-sectional schematic diagram illustrating one operating state of the locking component. (Refer to...) Figures 5 to 7 The injection mold also includes a locking element 91, a first locking pin 93, a second locking pin 94, a first limiting element 95, and a second limiting element 96.

[0083] The locking member 91 is fixedly disposed relative to the moving mold 50. When the moving mold 50 is in either the first molding position or the second molding position, the locking member 91 can move along the longitudinal mold closing direction D with the moving mold 50 to insert into the fixed mold plate 20. The portion of the locking member 91 used for inserting into the fixed mold plate 20 is recessed with a locking groove 911 in a direction perpendicular to the longitudinal mold closing direction D.

[0084] The first locking pin 93 is movably disposed on the fixed template 20 along a first insertion direction P1 and the opposite direction of the first insertion direction P1. When the moving mold 50 and the first fixed mold part 21 are closed in the first forming position, the locking pin 911 is inserted into the locking groove 911 along the first insertion direction P1 to prevent the locking member 91 from moving relative to the fixed template 20. The first insertion direction P1 is perpendicular to the longitudinal mold closing direction D.

[0085] The second locking pin 94 is movably disposed on the fixed mold plate 20 along a second insertion direction P2 and the opposite direction of the second insertion direction P2. When the moving mold 50 and the second fixed mold part 22 are closed in the second molding position, it can be inserted into the locking groove 911 along the second insertion direction P2 to prevent the locking member 91 from moving relative to the fixed mold plate 20. The second insertion direction P2 is perpendicular to the longitudinal mold closing direction D.

[0086] The first limiting member 95 is fixedly connected to the fixing base 10. The first limiting member 95 is movably inserted into the fixed mold plate 20 in the longitudinal mold closing direction D and the opposite direction of the longitudinal mold closing direction D. When the moving mold 50 is in the first molding position and the first fixed mold part 21 and the first core mold 30 are molded together, the first limiting member 95 can abut against the first locking pin 93 that has been inserted into the locking groove 911 in the first insertion direction P1. The first limiting member 95 is set so that when the moving mold 50 is in the first molding position and the first fixed mold part 21 are molded together and the first core mold 30 is separated, the first locking pin 93 can be moved out of the locking groove 911 in the opposite direction of the first insertion direction P1.

[0087] The second limiting member 96 is fixedly connected to the fixing base 10. The second limiting member 96 is movably inserted into the fixed template 20 in the longitudinal mold closing direction D and the opposite direction of the longitudinal mold closing direction D. When the moving mold 50 is in the second molding position and the second fixed mold part 22 and the second core mold 40 are molded together, the second limiting member 96 can abut against the second locking pin 94 that has been inserted into the locking groove 911 in the second insertion direction P2. The second limiting member 96 is set so that when the moving mold 50 is in the second molding position and the second fixed mold part 22 are molded together and the second core mold 40 is molded apart, the second locking pin 94 can move out of the locking groove 911 in the opposite direction of the second insertion direction P2.

[0088] In the illustrative embodiment, the first locking pin 93 is cylindrical with its axial direction perpendicular to the longitudinal mold closing direction D and the first insertion direction P1. The locking groove 911 is a corresponding semi-cylindrical shape. The groove wall of the locking groove 911 can push against the first locking pin 93 during the mold separation process between the moving mold 50 and the first fixed mold part 21 in the first forming position, causing the first locking pin 93 to move out of the locking groove 911. The second locking pin 94 is cylindrical with its axial direction perpendicular to the longitudinal mold closing direction D and the second insertion direction P2. The locking groove 911 is a corresponding semi-cylindrical shape. The groove wall of the locking groove 911 can push against the second locking pin 94 during the mold separation process between the moving mold 50 and the second fixed mold part 22 in the second forming position, causing the second locking pin 94 to move out of the locking groove 911.

[0089] In the illustrative embodiment, the first limiting member 95 has a first abutting surface 951, which is parallel to the axial direction of the first locking pin 93 and gradually extends towards the first insertion direction P1 along the longitudinal mold closing direction D. During the process of the fixed mold plate 20 moving relative to the fixed base 10 along the longitudinal mold closing direction D to drive the first core mold 30 and the first fixed mold part 21 to close the mold by means of the first lever 70, the first limiting member 95 can push the first locking pin 93 through the first abutting surface 951 so that the first locking pin 93 is inserted into the locking groove 911. The second limiting member 96 has a second abutting surface 961, which is parallel to the axial direction of the second locking pin 94 and gradually extends towards the second insertion direction P2 along the longitudinal mold closing direction D. During the process of the fixed mold plate 20 moving relative to the fixed base 10 along the longitudinal mold closing direction D to drive the second core mold 40 and the second fixed mold part 22 to close the mold by means of the second lever 80, the second limiting member 96 can push the second locking pin 94 through the second abutting surface 961 so that the second locking pin 94 is inserted into the locking groove 911.

[0090] With the above structure, during mold parting, before the first core mold 30 and the second core mold 40 are completely separated, the two moving molds 50 can remain engaged with the first fixed mold portion 21 and the second fixed mold portion 22. During mold closing, the two moving molds 50 can first engage with the first fixed mold portion 21 and the second fixed mold portion 22, and then the first core mold 30 and the second core mold 40 move to close the mold. This prevents the first core mold 30 and the second core mold 40 from scratching the dual-color light guide assembly.

[0091] This disclosure provides an injection mold including a fixed base 10, a fixed template 20, a first core mold 30, a second core mold 40, and a movable mold 50. The fixed template 20 is movably connected to the fixed base 10 and has a first fixed mold portion 21 and a second fixed mold portion 22. The first core mold 30 and the second core mold 40 are movably connected to the fixed template 20 to close and separate from the first fixed mold portion 21 and the second fixed mold portion 22. The movable mold 50 is movable relative to the fixed base 10 and can also move relative to the fixed base 10 to a first molding position and a second molding position. The movable mold 50 in the first molding position can close with the first fixed mold portion 21 and the first core mold 30 to form a first molding cavity 101. The movable mold 50 in the second molding position can close with the second fixed mold portion 22 and the second core mold 40 along the longitudinal mold closing direction to form a second molding cavity 102. This injection mold can prevent light-blocking components from slipping between the light guide pillars.

[0092] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0093] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementation schemes or modifications made without departing from the spirit of the present invention, such as combinations, divisions or repetitions of features, should be included within the scope of protection of the present invention.

Claims

1. An injection mold, wherein the injection molded part comprises a first injection body and a second injection body, characterized in that, The injection mold includes: A fixed base (10); A fixed template (20) is movably connected to the fixed base (10) along the longitudinal mold closing direction (D) and the opposite direction of the longitudinal mold closing direction (D). The fixed template (20) has a first fixed mold part (21) and a second fixed mold part (22). A first core mold (30) is movably connected to the fixed mold plate (20) for mold closing and mold opening with the first fixed mold part (21); A second core mold (40) movably connected to the fixed mold plate (20) for mold closing and mold opening with the second fixed mold portion (22); and A moving mold (50) is capable of moving relative to the fixed base (10) along the longitudinal mold direction (D) and the opposite direction of the longitudinal mold direction (D). The moving mold (50) is also capable of moving relative to the fixed base (10) to a first molding position and a second molding position along a trajectory perpendicular to the longitudinal mold direction (D). The moving mold (50) located at the first molding position is capable of closing with the first fixed mold part (21) and the first core mold (30) along the longitudinal mold direction (D) to form a first molding cavity (101). The first molding cavity (101) corresponds to the shape of the first injection molded body. The moving mold (50) located at the second molding position is capable of closing with the second fixed mold part (22) and the second core mold (40) along the longitudinal mold direction (D) to form a second molding cavity (102). The second molding cavity (102) corresponds to the shape of the first injection molded body and the second injection molded body after combination. The first core mold (30) is movably connected to the fixed template (20) along a first transverse mold direction (T1) perpendicular to the longitudinal mold direction (D) and the opposite direction of the first transverse mold direction (T1). The first core mold (30) has a first driving hole (31), and the first driving hole (31) is inclined towards the first transverse mold direction (T1) based on the longitudinal mold direction (D). The injection mold further includes a first lever (70), which is fixedly connected to the fixed base (10) and has a first driving part (71) inserted into the first driving hole (31), the extension direction of the first driving part (71) being the same as the direction of the first driving hole (31).

2. The injection mold as described in claim 1, characterized in that, The moving mold (50) is able to rotate relative to the fixed base (10) about a first axis (L1) parallel to the longitudinal mold direction (D), and the angle between the first molding position and the second molding position is 180 degrees.

3. The injection mold as described in claim 2, characterized in that, The injection mold is provided with two moving molds (50), and the injection mold further includes: A movable seat (60) is provided, on which two moving molds (50) are fixed. The movable seat (60) is capable of moving relative to the fixed seat (10) along the longitudinal mold direction (D) and the opposite direction of the longitudinal mold direction (D), and is capable of rotating relative to the fixed seat (10) around the first axis (L1). The two moving molds (50) are centrally symmetrically distributed about the first axis (L1).

4. The injection mold as described in claim 1, characterized in that, The second core mold (40) is movably connected to the fixed template (20) along a second transverse mold direction (T2) perpendicular to the longitudinal mold direction (D) and in the opposite direction of the second transverse mold direction (T2). The second core mold (40) has a second driving hole (41), and the orientation of the second driving hole (41) is inclined towards the second transverse mold direction (T2) based on the longitudinal mold direction (D). The injection mold also includes: A second lever (80) is fixedly connected to the fixed base (10) and has a second drive part (81) inserted into the second drive hole (41), the extension direction of the second drive part (81) being the same as that of the second drive hole (41).

5. The injection mold as described in claim 4, characterized in that, The first core mold (30) has a core insert (32) protruding along the first transverse mold closing direction (T1) at its front end. The core insert (32) is used to define the shape of the first molding cavity (101) and corresponds to at least a portion of the second injection molded body. A portion of the space of the first molding cavity (101) is located on the front side of the core insert (32) along the longitudinal mold closing direction (D).

6. The injection mold as described in claim 5, characterized in that, The injection mold also includes: A locking member (91) is fixedly disposed relative to the moving mold (50). When the moving mold (50) is located in either the first molding position or the second molding position, the locking member (91) can move with the moving mold (50) along the longitudinal mold direction (D) to insert into the fixed mold plate (20). The portion of the locking member (91) for inserting into the fixed mold plate (20) is recessed with a locking groove (911) in a direction perpendicular to the longitudinal mold direction (D). A first locking pin (93) is movably disposed on the fixed mold plate (20) along a first insertion direction (P1) and the opposite direction of the first insertion direction (P1), and is capable of being inserted into the locking groove (911) along the first insertion direction (P1) when the moving mold (50) at the first forming position is closed with the first fixed mold part (21), thereby preventing the locking member (91) from moving relative to the fixed mold plate (20), the first insertion direction (P1) being perpendicular to the longitudinal mold closing direction (D); and A second locking pin (94) is movably disposed on the fixed template (20) along a second insertion direction (P2) and the opposite direction of the second insertion direction (P2), and is able to be inserted into the locking groove (911) along the second insertion direction (P2) when the moving mold (50) located in the second molding position is closed with the second fixed mold part (22) to prevent the locking member (91) from moving relative to the fixed template (20), the second insertion direction (P2) being perpendicular to the longitudinal mold closing direction (D).

7. The injection mold as described in claim 6, characterized in that, The injection mold also includes: A first limiting member (95) is fixedly connected to the fixing base (10). The first limiting member (95) is movably inserted into the fixed mold plate (20) along the longitudinal mold closing direction (D) and the opposite direction of the longitudinal mold closing direction (D). The first limiting member (95) is capable of abutting against the first locking pin (93) inserted into the locking groove (911) along the first insertion direction (P1) when the moving mold (50) in the first molding position is molded with the first fixed mold part (21) and the first core mold (30). The first limiting member (95) is configured to allow the first locking pin (93) to move out of the locking groove (911) along the opposite direction of the first insertion direction (P1) when the moving mold (50) in the first molding position is molded with the first fixed mold part (21) and molded with the first core mold (30). A second limiting member (96) is fixedly connected to the fixing base (10). The second limiting member (96) is movably inserted into the fixed mold plate (20) along the longitudinal mold closing direction (D) and the opposite direction of the longitudinal mold closing direction (D). When the moving mold (50) is in the second molding position and the second fixed mold part (22) and the second core mold (40) are molded together, the second limiting member (96) abuts against the second locking pin (94) inserted into the locking groove (911) along the second insertion direction (P2). The second limiting member (96) is configured to allow the second locking pin (94) to move out of the locking groove (911) along the opposite direction of the second insertion direction (P2) when the moving mold (50) is in the second molding position and the second fixed mold part (22) is molded together and the second core mold (40) is molded apart.

8. The injection mold as described in claim 7, characterized in that, The first locking pin (93) is cylindrical with its axis perpendicular to the longitudinal mold closing direction (D) and the first insertion direction (P1). The locking groove (911) is a corresponding semi-cylindrical shape. The groove wall of the locking groove (911) can push against the first locking pin (93) during the mold separation process between the moving mold (50) and the first fixed mold part (21) located at the first molding position, so that the first locking pin (93) moves out of the locking groove (911); and / or The second locking pin (94) is cylindrical with its axis perpendicular to the longitudinal mold direction (D) and the second insertion direction (P2). The locking groove (911) is a corresponding semi-cylindrical shape. The groove wall of the locking groove (911) can push against the second locking pin (94) during the mold separation process between the moving mold (50) and the second fixed mold part (22) located in the second molding position, so that the second locking pin (94) moves out of the locking groove (911).

9. The injection mold as described in claim 7, characterized in that, The first limiting member (95) has a first abutting surface (951) that is parallel to the axial direction of the first locking pin (93) and extends gradually toward the first insertion direction (P1) along the longitudinal mold-closing direction (D). During the process of the fixed mold plate (20) moving relative to the fixed base (10) along the longitudinal mold-closing direction (D) to drive the first core mold (30) and the first fixed mold part (21) to close by means of the first lever (70), the first limiting member (95) can push the first locking pin (93) through the first abutting surface (951) so that the first locking pin (93) is inserted into the locking groove (911); and / or The second limiting member (96) has a second abutting surface (961) that is parallel to the axial direction of the second locking pin (94) and extends gradually toward the second insertion direction (P2) along the longitudinal mold closing direction (D). During the process of the fixed mold plate (20) moving relative to the fixed base (10) along the longitudinal mold closing direction (D) to drive the second core mold (40) and the second fixed mold part (22) to close by means of the second lever (80), the second limiting member (96) can push the second locking pin (94) through the second abutting surface (961) so that the second locking pin (94) is inserted into the locking groove (911).

10. The injection mold as described in claim 1, characterized in that, The injection mold also includes: A drive unit (97) capable of driving the moving mold (50) to move relative to the fixed base (10); and An elastic element (98) is capable of driving the fixed template (20) to move in the opposite direction of the longitudinal mold direction (D) relative to the fixed seat (10) by means of elastic restoring force.

11. The injection mold as described in claim 10, characterized in that, The injection mold also includes: A guide rod (99) is fixedly connected to the fixed seat (10) and is movably inserted into the fixed template (20) along the longitudinal mold direction (D) and the opposite direction of the longitudinal mold direction (D). The elastic element (98) is a compression spring and is sleeved on the guide rod (99).

Images